<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Apr 15, 2016, at 12:32 PM, ahmed aboud <<a href="mailto:ahmedaboud@outlook.com" class="">ahmedaboud@outlook.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" style="font-family: Calibri; font-size: 16px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Hi all,<div class=""><span style="white-space: pre-wrap; font-size: 12pt;" class=""><br class=""></span></div><div class=""><span style="white-space: pre-wrap; font-size: 12pt;" class="">I am trying to develop a </span><span style="white-space: pre-wrap; font-size: 12pt;" class="">scenario for </span><span style="font-size: 12pt; white-space: pre-wrap;" class="">multi-hop wireless ad-hoc network , currently i'm working with a 3 nodes topology A-->B-->C where </span><span style="font-size: 12pt; white-space: pre-wrap;" class="">(A:consumer ; B: forwarder ; C: producer ) and i managed to forward interest packets to node C, by creating a custom forwarding strategy that enable forwarding through the same face. </span></div><div class=""><span style="white-space: pre-wrap; font-size: 12pt;" class="">My problem is that node B receives the returned data packet and it doesn't forward it back to node A since the NFD forwarder doesn't permit forwarding data packet throw the same downstream face </span></div><div class=""><span style="white-space: pre-wrap; font-size: 12pt;" class=""><br class=""></span></div><div class=""><span style="white-space: pre-wrap; font-size: 12pt;" class="">as shown on this file: </span><a href="https://github.com/named-data-ndnSIM/NFD/blob/bd8eea71137bc382fe1fb8225334b926a5484527/daemon/fw/forwarder.cpp#L365" target="_blank" style="font-size: 12pt;" class="">https://github.com/named-data-ndnSIM/NFD/blob/bd8eea71137bc382fe1fb8225334b926a5484527/daemon/fw/forwarder.cpp#L36</a>4</div><div class=""><br class=""><div class="">and by modifying the Forwarder class to enable it to forward data packets to the same inFace only the first 2 packets were sent and received correctly as you can see on the Forwarder log, i suspect that node C doesn't have a route to the other nodes but i dont quite understand why only 2 packets were sent and received correctly.</div><div class=""><br class=""></div><div class="">any help will be much appreciated.</div></div><div class=""><br class=""></div><div class="">Thanks ,</div><div class="">Ahmed.</div></div></div></blockquote><br class=""></div><div>Hi Ahmed,</div><div><br class=""></div><div>just saw this, dont know if anyone has replied. </div><div>1/ Davide et al, copied here, had similar problem a few years back (i.e. need to send packets out thru the same WiFi interface they came in), I believe they modified the code to do that.</div><div><br class=""></div><div>2/ a note to NFD folks on this list: maybe one would re-visit this design issue of "NFD forwarder doesn't permit forwarding data packet throw the same downstream face"?</div><div><br class=""></div><div>Lixia</div><br class=""></body></html>